Freebase(0.00 / 0 votes)Rate this definition: Serval. The serval is a medium-sized African wild cat. DNA studies have shown that the serval is closely related to the African golden cat and the caracal. Chambers 20th Century Dictionary (0.00 / 0 votes) Rate this definition:
Word forms: plural harrows. countable noun. A harrow is a piece of farm equipment consisting of a row of blades fixed to a heavy frame. When it is pulled over ploughed land, the blades break up large lumps of soil.
Several meanings are applied to the word ground in test & measurement: 1  Signal Ground. A very low impedance return signal path to the circuit under test. 2  Earth Ground. The local zero voltage i.e. the voltage you see when connected to a metal stake in the ground or via a three pin AC power adapter. 3  Ground Reference.